I can resolve this using a program that starts with the letter V to illustrate this problem with pictures. Some people don't like it being broadcast-ed on their forums hence why I'm hesitant to showing it using it for diagrams. All in all, this is just rules lawyering and shadiness. Is it legal? by some crazy extent yes, but if I see this done in a game, I will only accept it right on the deployment line. It is pretty damn easy to figure out exactly how far 12" is no matter what part you use to measure. Furthermore, everyone needs to remember, VEHICLES DO NOT MOVE SIDEWAYS! I think that will clear up a lot of confusion as well.
Simple scenario for movement is this: Pivot to whatever direction you want to move, measure however much you want to move, if you still need to turn, pivot again till the front aims to the direction you want to move, then measure the remainder of the movement, pivot to show the facing you want, and done. Now, that might give you a slight advantage, but it's not a 3" advantage that most people think, in reality, it could be more like 1 to 1 1/2" in total.
Another form of bad or "illegal" movement is something called "sliding". Like I said before, vehicles do not move sideways. So that means I can't move from off the board edge, and end my move sideways and claim that it is the distance measured. For me to move from off the board edge, I need to move directly straight, and wherever I end up, pivot on the spot. That means I would lose about an inch or so, but that is something we have to deal with just as "gaining" an inch for starting on the deployment line sideways. This is a lot easier to show with illustrations so I'll leave it at that for now, but if people really are having such a hard time with this we should discuss it with pictures so everyone gets the exact meaning without any incorrect interpretations.
p.s. - My marines are, Pi-m-p
- Hi my name is Chris, and yes, I'm talking smack with my unpainted Tau army.
- Math Marines: The Sons of Euclid
: Cause everyone knows we're Pi-M-P. π